AudiForums.com - code p0171

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jpez	12-18-2005 08:18 AM

code p0171

I just serviced an Audi A3 2004 model and it keeps on giving me this code P0171 (system to lean : bank 1)...

What could cause this that would be connected to the service since it didn't do it before...

I changed spark plugs, fuel filter, oil and oil filter...

Whenever I delete it it just comes up again...

Thanks for any help...

AudiTech04

12-18-2005 03:57 PM

RE: code p0171

Vacum hose broken somewhere

You very well could have broke it during the service

jpez	12-19-2005 05:16 AM

RE: code p0171

That's what I suspected so I had a quick check but found nothing...

What else could cause this????

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